Q1. %A VOR is sited at position A (35 00’N, 020 00’E). An aircraft is located at position B (34 00’Ν, 020 00’Ε). Assuming that the magnetic variation at A is 15W and at B is 20W, the aircraft is on VOR radial:
195
Q2. *A VOR and DME are co-located. You want to identify the DME by listening to the all sign. Having heard the same callsign 4 times in 30 seconds the?
DME callsign is the one with the higher pitch that was broadcast only once
Q3. *Two aircraft are located on the same radial but at (arbitrary) different distances from a VOR station. Which statement is true?
Two aircraft are located on the same radial but at (arbitrary)
different distances from a VOR-station. Which statement
is true?
CORRECT ANSWER IN 23-1209 – MASTER DATA
A) At a certain moment of time, both the phase of the reference
signals and of the variable signals are unequal for both
aircraft.
CORRECT ANSWER IN KEITH WILLIAM
At the certain moment of time the phase of the reference signals is equal and the phase of the variable signal is equal for both.
Age Gap Example:
Two couples:
Couple 1 → Male 30, Female 25
Couple 2 → Male 40, Female 35
Age gap = 5 years in both cases.
Even though actual ages differ (distance differs), the difference remains identical (like phase difference).
You cannot have:
Same male (ref) age but different female (var) age
If the gap must remain constant.
Q4. #The VOR indications on an RMI whose deviation is not zero:
are magnetic
Q5. %A VOR receiver in an aircraft measures the phase difference from a DVOR as 220°. Which radial is the aircraft on?
220
Q6. %An aircraft is tracking away from VOR “A” on the 310° radial with 8° starboard drift; NDB “X” is north of “A”. Which diagram below illustrates the RMI when the aircraft is on its present track with a QDR from “X” of 270° (Visual Q.)
A
Q7. *An aircraft is flying on the 170 radials with a heading of 315° (M). The course on the HSI is set to 180° Which HSI shows the correct indications? (Visual Q.)
C
Q8. %Given: Aircraft heading 045(M) Aircraft is on radial 080 from a VOR, Selected course on HSI is 090The HSI indications are deviation bar?
Behind the aeroplane symbol with the FROM flag showing
Q9. %An airway 15 NM wide is to be defined by two VORs each having a resultant bearing accuracy of plus or minus 5.5 degrees. In order to ensure accurate track guidance within the airway limits the maximum distance apart for the transmitter is approximate?
160 NM
Q10. %*Tuned to a VOR station, with OBS needle central, the instrument reads 140 degrees with TO indicated. Relative to the VOR station the receiver is in the?
Northwest sector
Q11. #An aircraft is required to intercept and home to a VOR along the 064 radial. The OBS should be set to:
244 to get correct needle sense and a TO indication
Q12. Memorise #The identification of a DME in combination with a collocated VOR is as follows?
==>> this answer in in the JAA /EASA question bank
Q13. *In order to measure the radial from a VOR, the aircraft VOR receiver?
Measures the phase difference between the reference phase and the variable phase of the signal
Q14. An airplane flying on a heading of 220 degrees magnetic is on a bearing of 270 degrees magnetic from VOR. The bearing from the VOR that should be selected on the OBS to centralize the VOR/ILS deviation needle is?
270
Q15. **The VOR system is limited to about 1 degree of accuracy. One degree at 200 nm range represents a width of?
$pm$ 3.5 nm
Q16. Given: VOR station position N66 E025, variation 20E; Estimated position of an aircraft N56, E025 variation 25E. What VOR radial is the aircraft on?
160
Q17. **How does a VOR/DME Area Navigation system select the DME station to be used for positioning?
The VOR/DME Area Navigation system has its own NAV tuner and the system itself tunes the DME stations providing the most accurate position
Q18. ***An RMI slaved to a remote indicating compass has gone unserviceable and is locked on to a reading of 090 degrees. The tail of the VOR needle shows 135 degrees. The available information from the VOR is?
Radial 135, relative bearing unknown
only QDR will be known – because the RMI needle is designed to point accurately at correct QDR, in case of RMI slaving or srynconization fails.
but heading information is not available , because of that relative bearing can not be calculated.
Q19. #Which of the following statements concerning the variable, or directional, signal of a conventional VOR is correct?
The rotation of the variable signal at a rate of 30 times per second gives it the characteristics of a 30 Hz amplitude modulation
Q20. A VOR is sited at position A. (45 00 N, 010 00 E). An aircraft is located at position B, (44 00 N, 010 00 Ε). Magnetic variation at position A=10 degrees West, and at position B it is 15 degrees West. The aircraft is on VOR radial?
190 degrees
Q21. #Unless otherwise specified a radial, is?
The magnetic great circle direction from the beacon
Q22. **What is the maximum distance between VOR and DME/TACAN ground installations if they are to have the same Morse code identifier?
600 m
Q23. A radial is the………. (i) bearing………. (ii) a VOR ground station?
Magnetic From
Q24. An Omni-bearing selector (OBS) shows full deflection to the left when within range of a serviceable VOR. What angular deviation are you from the selected radial?
10 or more
Q25. Given: Magnetic heading 280 degrees, VOR radial 090 degrees. What bearing should be selected on the omni-bearing selector in order to centralize the VOR deviation needle with a TO” indication?
270 degrees
Q26. %*An aircraft is tracking away from a VOR on the 050 radial with 10° starboard drift. An NDB lies to the east of the VOR. Which of the RMIs illustrated below shows the aircraft when it is obtaining a relative bearing of 100° from the NDB? (Visual Q.)
D
Q27. # If VOR bearing information is used beyond the published protection range, errors could be caused by:
Interference from other transmitters
Q28. %Given: Aircraft position 52 09 S 024 E, magnetic variation 14W, FL310. BIT VOR/DME position 54 42 S 024 E. Magnetic variation 14E. In order to read the most accurate ground speed given by the DME receiver from this position, the pilot must follow which BIT radial?
346 degrees
Q29. You are on a compass heading of 090 degrees on the 255 radial from a VOR. You set the course 190 degrees on your OBS. The deviation bar will show?
Full scale deflection left with a “from” indication
Q30. On the RMI the (TIP) front end of the VOR pointer indicates the?
Radial plus 180 degrees
Q31. A VOR beacon ceases to transmit its normal identification which is substituted by ‘TST’. This means that:
the beacon is undergoing maintenance or calibration and should not be used
Q32. #The principle used in VOR bearing measurement is:
Phase comparison
Q33. %An aircraft is tracking away from a VOR on the 150 radial with 10° starboard drift. An NDB lies to the south of the VOR. Which of the RMIs illustrated below shows the aircraft when it is obtaining a relative bearing of 100° from the NDB? (Visual Q.)
A
Q34. #%In order to obtain CDI (Course Deviation Indicator) indications in the correct sense when tracking towards a VOR on radial 235 degrees, the pilot should set on the OBS (omni bearing selector)?
055 degrees with TO indicated
Q35. %An aircraft is homing towards a VOR which marks the centre line of an airway. The beacon is 100 NM distant. If the pilot had the airway QDM set on the OBS what deflection of the deviation indicator would be given if the aircraft was on the boundary of the airway? Assume that one dot equals 2 degrees.
1.5 dots
Q36. % . An aircraft is flying on the 050 radial with a heading of 250° (M). The course on the HSI is set to 060°. Which HSI shows the correct indications? ( Visual Q.)
B
Q37. *Which of the following statements about the scalloping (path deflection) of VOR radials, in relation to the accuracy of navigation using a VOR/DME RNAV system is correct?
Scalloping has a negative effect on the accuracy of navigation
Q38. *** Two aircraft are located on (arbitrary) different radials but at equal distances from a VOR station. Which statement is true?
At a certain moment of time the phase of the reference signals is equal and the phases of the variable signals is unequal for both
Q39. #Apart from radials and distances from VOR/DME stations, what information is required by the VOR/DME Area Navigation computer in order to calculate the wind?
Heading from the aircraft compass system and true airspeed from the Air Data Computer
Q40. Concerning conventional and Doppler VORS (DVOR), which of the following is correct?
There is no way of knowing from the instrumentation display which type is being used
Q41. #The Designated Operational Coverage quoted for VOR beacons in the COMM section of the AIP:
defines the airspace within which an aircraft is assured of protection from interference from other VORs on the same channel
Q42. Given: Aircraft position 34 15 N 098E, magnetic variation 28W, FL280, PTC VOR/DME position 36 12 N 098E, magnetic variation 13E. In order to read the most accurate ground speed given by the DME receiver from his present position, the pilot must fly on which PTC Radial?
167
Q43. #The RMI indicates the aircraft magnetic heading. To convert the RMI bearings of NDBs and VORs to true bearings, the correct combination for the application of magnetic variation is:
aircraft position; beacon position
Q44. %Assuming the maximum likely error in VOR to be 5°, what is the maximum distance apart that beacons can be situated on the centre line of a UK airway in order that an aircraft can guarantee to remain within the airway boundary?
60 NM
Q45. % An aircraft is attempting to home to a VOR beacon. The pilot has set 329 on the OBS of the deviation indicator. If the aircraft is situated on the 152 radial then the deviation indicator will show:
one and a half dots fly right
Q46. In order to plot a bearing from a VOR station, a pilot needs to know the magnetic variation:
At the VOR
Q47. # If an aircraft flies along a VOR radial it will follow a:
Great circle track
Q48. #TVOR is a?
VOR with a limited range used in the terminal area
Q49. *Which statement is correct about the different types of VOR?
A TVOR has a limited range
Q50. #Transmissions from VOR facilities may be adversely affected by:
Uneven propagation over irregular ground surfaces
Q51. # Under which of the following circumstances does a VOR/DME Area Navigation System switch to Dead Reckoning Mode?
The system is receiving information from only one VOR
Q52. #/Which statement is true about the use of the Doppler VOR?
The Doppler effect is used to create a signal, which is received by the aircraft’s VOR receiver as a frequency modulated signal
Q53. *The type of emission radiated by a VOR beacon is:
a single channel VHF carrier wave amplitude modulated at 30 Hz with a sub carrier being frequency modulated at 30 Hz
Q54. The three main components of VOR airborne equipment are?
Receiver, Antenna, Display
Q55. #A VOR and NDB are co-located. An aeroplane fitted with an RMI is flying away from the beacons on a radial of 090 degrees. The variation is changing rapidly. Which of the following statements is true?
The VOR needle will not move, but the ADF needle will move as the variation changes